Detachable shelter frame for spectacles

Abstract

A detachable shelter frame for mounting in front of a primary spectacles frame which includes a frame body mounting two lenses in position, wherein the detachable shelter frame includes two auxiliary lenses, a shelter bridge, and two resilient mounting devices. The resilient mounting devices are spacedly provided at the shelter frame for detachably mounting the shelter frame in front of the primary spectacles frame, wherein each of the resilient mounting devices includes a resilient arm extended from the shelter bridge and an engaging member. The engaging member is extended from the resilient arm for pressing against the rear surface of the respective lens of the primary spectacles frame in such a manner that the two resilient arms substantially pull the two engaging members towards the primary spectacles frame for mounting the shelter frame in front of the primary spectacles frame.

1. A detachable shelter frame for mounting in front of a primary spectacles frame which comprises a frame body having a primary bridge mounting two lenses in position, wherein said detachable shelter frame comprises:
 two auxiliary lenses; 
 a shelter frame for supporting said two auxiliary lenses in position, wherein said shelter frame comprises a shelter bridge extended between said two auxiliary lenses, wherein said shelter bridge, which is made of flexible material, has an elongated retention groove extended along a rear side thereof for receiving a front side of said primary bridge at a position that a front bottom edge of said primary bridge is engaged with said retention groove so as to retain said detachable shelter frame in front of said primary spectacles frame; and 
 two resilient mounting devices spacedly provided at said shelter frame for detachably mounting said detachable shelter frame in front of said primary spectacles frame, wherein each of said resilient mounting devices comprises: 
 a resilient arm rearwardly extended from said shelter frame to a rear position of said respective lens of said primary spectacle frame, and 
 an engaging member which is extended from said resilient arm for pressing against a rear surface of said respective lens of said primary spectacles frame in such a manner that said two resilient arms substantially pull said two engaging members towards said primary spectacles frame so as to apply an urging pressure against said primary spectacles frame for holding said frame body of said primary spectacles frame between said shelter frame and said engaging members, so as to securely mount said detachable shelter frame in front of said primary spectacles frame. 
 
   
   
     2. The detachable shelter frame, as recited in  claim 1 , further comprising a retention arm, attached along said shelter bridge, has two side ends extended to said resilient arms respectively, such that said shelter bridge not only securely holds said two resilient mounting devices in position for engaging with said lenses respectively but also substantially engages with said primary bridge to retain said detachable shelter frame in position. 
   
   
     3. A detachable shelter frame for mounting in front of a primary spectacles frame which comprises a frame body having a primary bridge mounting two lenses in position, wherein said detachable shelter frame comprises:
 two auxiliary lenses; 
 a shelter frame for supporting said two auxiliary lenses in position, wherein said shelter frame comprises a shelter bridge extended between said two auxiliary lenses, wherein said shelter bridge, which is made of flexible material, has an elongated retention groove extended along a rear side thereof for receiving a front side of said primary bridge at a position that a front bottom edge of said primary bridge is engaged with said retention groove so as to retain said detachable shelter frame in front of said primary spectacles frame; and 
 two resilient mounting devices spacedly provided at said shelter frame for detachably mounting said detachable shelter frame in front of said primary spectacles frame, wherein each of said resilient mounting devices comprises: 
 a resilient arm rearwardly extended from said shelter frame to a rear position of said respective lens of said primary spectacle frame, and 
 an engaging member which is extended from said resilient arm for pressing against a rear surface of said respective lens of said primary spectacles frame in such a manner that said two resilient arms substantially pull said two engaging members towards said primary spectacles frame so as to apply an urging pressure against said primary spectacles frame for holding said frame body of said primary spectacles frame between said shelter frame and said engaging members, so as to securely mount said detachable shelter frame in front of said primary spectacles frame, wherein said engaging members are outwardly and inclinedly extended from said resilient arms for biasing against said rear surfaces of said lenses at two inner sides thereof respectively, wherein each of said engaging members having a curved structure forms an engaging point portion for substantially biasing against said rear surface of said respective lens to pull said respective lens towards said auxiliary lens so as to minimize a distance between said lens and said auxiliary lens. 
 
   
   
     4. The detachable shelter frame, as recited in  claim 3 , further comprising retention arm, attached along said shelter bridge, has two side ends extended to said resilient arms respectively, such that said shelter bridge not only securely holds said two resilient mounting devices in position for engaging with said lenses respectively but also substantially engages with said primary bridge to retain said detachable shelter frame in position. 
   
   
     5. A detachable shelter frame for mounting in front of a primary spectacles frame which comprises a frame body having a primary bridge mounting two lenses in position, wherein said detachable shelter frame comprises:
 two auxiliary lenses; 
 a shelter frame for supporting said two auxiliary lenses in position, wherein said shelter frame comprises a shelter bridge extended between said two auxiliary lenses, wherein said shelter bridge, which is made of flexible material, has an elongated retention groove extended along a rear side thereof for receiving a front side of said primary bridge at a position that a front bottom edge of said primary bridge is engaged with said retention groove so as to retain said detachable shelter frame in front of said primary spectacles frame; 
 two resilient mounting devices spacedly provided at said shelter frame for detachably mounting said detachable shelter frame in front of said primary spectacles frame, wherein each of said resilient mounting devices comprises: 
 a resilient arm rearwardly extended from said shelter frame to a rear position of said respective lens of said primary spectacle frame, and 
 an engaging member which is extended from said resilient arm for pressing against a rear surface of said respective lens of said primary spectacles frame in such a manner that said two resilient arms substantially pull said two engaging members towards said primary spectacles frame so as to apply an urging pressure against said primary spectacles frame for holding said frame body of said primary spectacles frame between said shelter frame and said engaging members, so as to securely mount said detachable shelter frame in front of said primary spectacles frame; and 
 two guiding arms rearwardly and spacedly extended from said shelter bridge to couple with said resilient arms at said rear surfaces of said lenses respectively, wherein said engaging members are mounted at two free ends of said resilient arms such that said two resilient arms pull said two engaging members for urging against said rear surfaces of said primary bridge so as to securely engage said two engaging members with said rear surfaces of said lenses of said primary spectacles frame from behind so as to mount said detachable shelter frame in front of said primary spectacles frame. 
 
   
   
     6. The detachable shelter frame, as recited in  claim 5 , further comprising retention arm, attached along said shelter bridge, has two side ends extended to said guiding arms respectively, such that said shelter bridge not only securely holds said two resilient mounting devices in position for engaging with said lenses respectively but also substantially engages with said primary bridge to retain said detachable shelter frame in position.